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2013-08-30
   

News 2018

April
Visitors

Lars Hedin, of Princeton, visited the Biomet lab and we discussed his new work on scaling and the development of root traits for soil biogeochemistry

March
Meetings

ddb spoke on the physics and ecology of mining CO2 from the atmosphere at the Berkeley Sierra Club in The John Muir Series: Answering the Call of Life& Part I: Climate Change

Publications

Eichelmann, E., K. S. Hemes, S. H. Knox, P. Y. Oikawa, S. D. Chamberlain, C. Sturtevant, J. Verfaillie, and D. D. Baldocchi. 2018. The effect of land cover type and structure on evapotranspiration from agricultural and wetland sites in the Sacramento–San Joaquin River Delta, California. Agricultural and Forest Meteorology 256–257:179-195.

Sean DuBois, Ankur R. Desai, Aditya Singh, Shawn P. Serbin, Michael L. Goulden, Dennis D. Baldocchi, Siyan Ma, Walter C. Oechel, Sonia Wharton, Eric L. Kruger, Philip A. Townsend. Using imaging spectroscopy to detect variation in terrestrial ecosystem productivity across a water-stressed landscape" Accepted Ecological Applications

Chamberlain, S. D., Anthony, T. , Silver, W. L., Eichelmann, E. , Hemes, K. S., Oikawa, P. Y., Sturtevant, C. , Szutu, D. J., Verfaillie, J. G. and Baldocchi, D. D. (2018), Soil properties and sediment accretion modulate methane fluxes from restored wetlands. Glob Change Biol. Accepted Author Manuscript. . doi:10.1111/gcb.14124

 

Submissions

On phylogenetic stability in thermal functional traits of plant communities dominating 129 ecosystems in Northern and Southern America by Siyan Ma, Beverly E. Law , Gregory Starr Ankur R. Desai, Gil Bohrer, Jordan G. Barr, Bai Yang, Joseph P. McFadden, Richard P. Phillips, Matteo Detto, William J. Massman, Dennis D. Baldocchi was re-submitted to New Phytologist

Kyle S Hemes. Samuel D Chamberlain, Elke Eichelmann , Sara H. Knox, Dennis D Baldocchi,. A biogeochemical compromise: The high methane cost of sequestering carbon in restored wetlands.  Geophysical Research Letters

Baldocchi, D.D. Commentary on Stocker et al Quantifying soil moisture impacts on light use efficiency across biomes. New Phytologist

Hemes, K., Eichelmann, E., Chamberlain, S. Knox, S. , Oikawa, P., Sturtevant, C., Szuto, D., Verfaillie, J., Baldocchi, D. A unique combination of aerodynamic and surface properties contribute to surface cooling in restored wetlands of the Sacramento-San Joaquin Delta, California. Journal of Geophysical Research, Biogeoscience

Visitors

Pierre Gentine, from Columbia, visited before his BASC seminar. We talked on evaporation flux partitioning and the role of vpd controlling fluxes with drought.

Elke Eichelmann hosted Andrew Oliphant's San Francisco State's bioclimatology class, GEOG 314, on a field trip to the Delta field site. About 25 students toured the greenhouse gas flux sites over ag crops and restored wetlands across the Delta.

February
Meetings

ddb gave the keynote lecture on the 'Physics and Ecology of Mining CO2 from the Atmosphere by plants, trees and ecosystems' at the Enviroday Symposium, held annually at the University of Virginia, Environmental Science Department to show case the research of the graduate and undergradate students.

Publications

Chamberlain, Samuel; Anthony, Tyler; Silver, Whendee; Eichelmann, Elke; Hemes, Kyle; Oikawa, Patricia; Sturtevant, Cove; Szutu, Daphne; Verfaillie, Joseph; Baldocchi, Dennis. Soil properties and sediment accretion modulate methane fluxes from restored wetlands. Accepted Global Change Biology

Staff News

Ana Andreu Mendez has rejoined the lab. She comes back with a Marie Curie fellowship from the European Union and will work on water and energy exchange of savannas

Amy Valach has joined the Biomet lab as a postdoc.  Amy received her PhD from the University of Lancaster studying voc fluxes and spent time in Antarctica working with the British Antarctic Survey

Submissions

Baldocchi, DD, Penuelas,J. The Physics and Ecology of Mining CO2 from the Atmosphere. Nature Sustainability. submitted

Visitors

In advance of the Berkeley Atmospheric Science Center annual symposium we hosted two visitors today.  Jim Randerson from UC Irvine and Ben Santer from Lawrence Livermore stopped to chat about land atmosphere interactions and climate.

 Iryna Dronova from Landscape Architecture gave a Biomet Lab seminar on her research using 30 m LANDSAT and 5 m Rapid Eye products to study phenology at our wetland field sites.

Prof Jennifer Murphy from the University of Toronto stopped by to visit and discuss ammonia flux measurements before her BASC seminar.

Dr. Alexis Berg, from Princeton, stopped by to visit and discuss modeling evaporation in a warmer and arid world. Alexis gave the BASC seminar this week.

January
Meetings

ddb attended a workshop on Oak Woodland Carbon in Berkeley

Proposals

Kyle Hemes received funding from the National Center Airborne Laser Mapping for a proposal "Ecosystem structure as a driver of climatic, habitat, and hydrological services in heterogeneous restored wetlands".  It will collect new LIDAR data over our delta wetland sites. Congratulations

Publications

Baldocchi, D., H. Chu, and M. Reichstein. 2018. Inter-annual variability of net and gross ecosystem carbon fluxes: A review. Agricultural and Forest Meteorology 249:520-533.

Visitors

Adam Wolf and his team from Arable https://www.arable.com/ visited the biometlab. Adam has developed a small integrated, low cost meteorological unit that measures in and out radiation variables, temperature, humidity, rain, etc and it can be used to assess water use, carbon uptake, crop wetness etc. We have one unit at Twitchell alfalfa and intend to add another at Bouldin Alfalfa

Bill Miller and Erik Johnson from LICOR visited.  They showed us the new flux processing software they are producing, that computes flux footprints, fills meteorological gaps with finding data from satellites or near by NOAA weather stations. Does plotting, too.

They also brought a prototype of a  moderate cost (~<k) laser based CO2, H2O and CH4 sensor.   For slow response measurements This will be a major technological step up from the NDIR sensors they have in the past for applications for trace gas monitoring in the atmosphere, emissions using box budgets and coupled with chambers.  

         
    This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.